Two sons (Romulus and Remus) and their servants live in the mansion of a prestigious aristocrat family.
Rinko, who serves them as a maid, is their favorite.

The head maid strictly tells her, "You mustn't look them in the eyes."
And yet, even though she was told not to do so....

Rinko's body becomes hot as the two stare at her.
She is made to feel good by their hands over and over again.

"Looks to still be a little too tight..."
"We've got to ready her a little more."

She spends her days being made love to by the two twins, but...

"I think it's about time."

One night under a full moon, the two of them transform...

"Prepare to accept us. Everything about us."

She is made love to by the pair of twin vampires until her body and heart are molten with ecstasy.